PLINK2-105 - Optional Attribute in Validation Calls to PicketLink STS
PLINK2-106 - Invalid Logout Responses from SAML2LogoutHandler
[PLINK2-104] - Fixing destination URL for logout responses.
Merge pull request #191 from pedroigor/master

[PLINK2-104] - Fixing destination URL for logout responses.
Merging Fixes for PLINK2-105 and PLINK2-106.
PLINK2-110 fixed GenericSOAPHandler import - only used in JavaDoc
Merge pull request #192 from kwart/PLINK2-110_import_fix

PLINK2-110 fixed GenericSOAPHandler import - only used in JavaDoc
Added NOSCRIPT code when JavaScript is disabled and POST binding is used.
Merge pull request #194 from pedroigor/master

[PLINK2-116] - Added NOSCRIPT code when JavaScript is disabled and POST binding is used.
PLINK2-118 - Fix Support for Global Logout in the Stand-Alone
Distribution
Merge pull request #195 from fribeiro1/master

PLINK2-118 - Fix Support for Global Logout in the Stand-Alone
Adding exception when no principal was found during the logout on the sp side.
Release version change: 2.1.8.Final
Next release version 2.1.9-SNAPSHOT.
Mannual merge